1 definition by DEFENDER85

Top Definition
A gunner is a man who is in jail or prison who starts to masturbate and/or ejaculate while non-inmates, guards or visitors walk by his cell. A gunner can also be seen in the background when you are talking to someone who is in jail via video visitation. The gunner will be seen masturbating and/or ejaculating on the tv screen.
When i walked through F-Pod at the jail, i was almost shot in the face by a gunner!
by DEFENDER85 April 14, 2011

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